Architect: N/A
Date of Construction: 1894-1969

Located on the east side of Racine, the Walker Manufacturing Co. – Ajax Plant is within a historic industrial corridor that developed along the former Chicago and Northwestern Railway tracks in the late nineteenth century. Walker Manufacturing is a local firm that grew in the twentieth century to become a nationwide industry leader in the design and manufacture of mufflers, jacks and other automotive parts. The plant is roughly U-shape in plan and is composed of a collection of brick manufacturing buildings that have been expanded to form an almost completely contiguous complex.

The Ajax Plant is also the location where the first Walker Silencer, an innovative automobile muffler design, was invented and first produced. Already a leader in jack production, the success of the patented louver technology used in this early muffler cemented Walker’s reputation as a leader in muffler production. Walker was headquartered in Racine from its beginnings in the early 1900s through 1995. This headquarters building and associated plants were demolished in 2000, leaving the Ajax Plant as the only remaining building associated with the Walker Manufacturing Co.

The Ajax Plant played a vital role in the company’s development and success as one of the company’s earliest production facilities. The plant remains as the last remaining production facility in Racine associated with the Walker Manufacturing Co. and is also among the last vestiges of Racine’s early role in Wisconsin’s automobile manufacturing industry.